Improvement in oil-testing machines



0. M. HIGGINSON. Oil-Testing Machine.

No. 214,132. P atente'd April 8, 1879.

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MPEKERS, PHOTO-LITHOQRAPNER, WASHINGTONv D, C.

UNITED STATES PATENT FFIGl CHARLES-M. HIGGINSON, OF CHICAGO, ILL,ASSIGNOR TO THE ASHCBOI MANUFACTURING COMPANY, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN OIL-TESTING MACHINES.

Specification forming part of Letters Patent No. 21 1, 132, dated April8, 1879; application filed November 1, 1878.

To all whom it may concern:

Be it known that I, CHARLES M. HIGGIN- SON, of Chicago, county of Cook,and State of Illinois, have invented a new and useful Improvement inOil-Testing Machines; and I do hereby declare that the following is afull, clear, and exactdescription thereof, reference being had to theaccompanying drawing, forming a part of this specification, in which thefigure represents a vertical transverse section of a machine embodyingmy invention.

This invention relates to an improvement upon the apparatus for whichLetters Patent of the United States No. 154,922 were granted September8, 1874, to Edward H. Ashcroft, of Boston, Massachusetts, as assignee ofH. Stapfer, of Manchester, England.

The improvement consists in providing for an oscillating movement of thetest-bearing box in relation to the revolving journal in such apparatus,said oscillating movement being communicated to an indicator or gage,and whereby the frictional resistance of the lubricated surfaces isdetermined.

In the drawing, A represents the revolving shaft, mounted upon suitablebearings, and provided with an intermediate journal, upon which thetesting-box B is arranged.

The box 13 is composed of the separable brasses b b, which bear uponthejournal, while sufficient space a is provided between them to permitan oscillating movement of either in respect to eachother. These brassesare m aintained in contact with the journal by means of the levers C C,the former being arranged to merely sustain the brass b in place, andthe latter constructed to carry the adjustable weight D and act tocompress the brass 1) upon the journal to a greater or less degree.

The weighted lever C is provided with a tie pending arm, d, connectingvwith the rod e, which acts by a slight endwise movement to operate theindex of a gage, F. This lever is pivoted to a vibrating standard, H,and connected with the brass b by means of the trum ion-bearin g g.

The standard H is pivoted within a socket or surrounding casin g, h, andEQt'rSCiCWS c 1 are provided to regulate its vibration ineitherIdirection.

By such construction and arrangement oi parts described and illustratedin the drawing it will be readily seen that as the' shaft A is revolvedthe friction upon thejourn al will cause the box to follow its rotation,and this movement will produce a corresponding movement to the connectedlever C in the direction of its length, the vibrating standard Hpermitting such movement, and which will cause the depending arm 61 topress upon the rod 0 and operate the index of the gage 1*.

The application of the various kinds and qualities of lubricants to thejournal and the varyin g compression given will produce greater or lessresistance between the revolving and yielding parts, and which may benoted from the indicating-gage. Heretot'ore this condition has not beenconsidered in conjunction with the former apparatus in determining thequalities of lubricants, and it will be obvious that this inventionprovides an important factor in this connection.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is-- 1. In a machine for testing lubricants, aj0urnal-bearin g provided with a box or casing for containing thelubricant, said box having an oscillating movement upon the journal,substantially as and for the purpose set forth.

2. The combination of the oscillating box 13, the weighted lever C, andthe indicator or gage F, substantially as described.

CHARLES M. HIGGINSON.

Witnesses .L. O. GODDARD,

H. G. AYER.

